CN109456497B - Resin rapid curing method for impregnating adhesive film paper - Google Patents
Resin rapid curing method for impregnating adhesive film paper Download PDFInfo
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- CN109456497B CN109456497B CN201811193773.0A CN201811193773A CN109456497B CN 109456497 B CN109456497 B CN 109456497B CN 201811193773 A CN201811193773 A CN 201811193773A CN 109456497 B CN109456497 B CN 109456497B
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- phenolic resin
- adhesive film
- film paper
- impregnating
- calcium hydroxide
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/24—Crosslinking, e.g. vulcanising, of macromolecules
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/20—Macromolecular organic compounds
- D21H17/33—Synthetic macromolecular compounds
- D21H17/46—Synthetic macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D21H17/47—Condensation polymers of aldehydes or ketones
- D21H17/48—Condensation polymers of aldehydes or ketones with phenols
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2361/00—Characterised by the use of condensation polymers of aldehydes or ketones; Derivatives of such polymers
- C08J2361/04—Condensation polymers of aldehydes or ketones with phenols only
- C08J2361/06—Condensation polymers of aldehydes or ketones with phenols only of aldehydes with phenols
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Adhesives Or Adhesive Processes (AREA)
- Phenolic Resins Or Amino Resins (AREA)
Abstract
The invention discloses a resin rapid curing method for impregnating adhesive film paper, which specifically comprises the following steps: a. adding calcium hydroxide as a catalyst into phenolic resin for impregnating the adhesive film paper, and uniformly mixing by using an adhesive mixing tank; b. reacting the mixture of the two at 60-65 ℃ for 30min, and stirring for 1 time/5 min; c. heating to 80-85 deg.C for the second time, reacting at the temperature for 45min, and stirring at 1/5 min to obtain the novel phenolic resin for impregnating the adhesive film paper. Divalent metal ion (calcium ion) compounds in calcium hydroxide are used as catalysts of the phenolic resin, and the divalent metal ions enable the phenolic resin to be rapidly cured at a lower viscosity, so that the impregnation time of the adhesive film paper is shortened, and the production efficiency is improved.
Description
Technical Field
The invention relates to the technical field of production and manufacture of impregnated bond paper, in particular to a method for quickly curing resin for impregnating bond paper.
Background
With the rapid development of the industries such as transportation and building in China, the demand on the outdoor artificial board products such as container bottom boards, concrete templates and the like is increasingly high, and the performance requirement is increasingly high. The artificial board is veneered by using the phenolic resin impregnated bond paper, and the performance and the service life of the artificial board can be effectively improved due to good water resistance, weather resistance and higher bonding strength. However, the long curing time and the high curing temperature are the main defects affecting the wide application of the phenolic resin.
Disclosure of Invention
The invention aims to provide a resin rapid curing method for impregnating adhesive film paper, which improves the curing speed of phenolic resin and further improves the production efficiency of the impregnated adhesive film.
In order to achieve the above purpose, the invention is realized by the following technical scheme: the resin rapid curing method for impregnating the adhesive film paper is characterized by comprising the following steps of: a. adding calcium hydroxide as a catalyst into phenolic resin for impregnating the adhesive film paper, and uniformly mixing by using an adhesive mixing tank; b. reacting the mixture of the two at 60-65 ℃ for 30min, and stirring for 1 time/5 min; c. heating to 80-85 deg.c twice, and reacting the mixture at the temperature for 45min while stirring at 1/5 min to obtain the phenolic resin for soaking adhesive film paper.
Further, the molar ratio of formaldehyde to phenol in the phenolic resin is 1.6 to 1.8.
Further, the molar ratio of the phenolic resin to the calcium hydroxide is 0.03-0.07.
In conclusion, the beneficial effects of the invention are as follows: divalent metal ion (calcium ion) compounds in calcium hydroxide are used as catalysts of the phenolic resin, and the divalent metal ions enable the phenolic resin to be rapidly cured at a lower viscosity, so that the impregnation time of the adhesive film paper is shortened, and the production efficiency is improved.
Drawings
FIG. 1 is a graph showing the relationship between free phenol and the amount of calcium hydroxide.
FIG. 2 is a graph showing the relationship between free formaldehyde and calcium hydroxide.
FIG. 3 is a graph showing the relationship between gel time and the amount of calcium hydroxide.
Detailed Description
In order to make the listed objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example one
a. Uniformly mixing phenolic resin with a molar ratio of 0.03 and calcium hydroxide by using a glue mixing tank; b. reacting the mixture of the two at 63 deg.C for 30min, and stirring at 1 time/5 min; c. and (3) raising the temperature to 83 ℃ for the second time, reacting the mixture of the two at the temperature for 45min, and stirring for 1 time/5 min to finally obtain the novel phenolic resin for impregnating the adhesive film paper.
Example two
a. Uniformly mixing phenolic resin with a molar ratio of 0.04 and calcium hydroxide by using a glue mixing tank; b. reacting the mixture of the two at 63 deg.C for 30min, and stirring at 1 time/5 min; c. and (3) raising the temperature to 83 ℃ for the second time, reacting the mixture of the two at the temperature for 45min, and stirring for 1 time/5 min to finally obtain the novel phenolic resin for impregnating the adhesive film paper.
EXAMPLE III
a. Uniformly mixing phenolic resin with a molar ratio of 0.05 and calcium hydroxide by using a glue mixing tank; b. reacting the mixture of the two at 63 deg.C for 30min, and stirring at 1 time/5 min; c. and (3) raising the temperature to 83 ℃ for the second time, reacting the mixture of the two at the temperature for 45min, and stirring for 1 time/5 min to finally obtain the novel phenolic resin for impregnating the adhesive film paper.
Example four
a. Uniformly mixing phenolic resin with a molar ratio of 0.06 and calcium hydroxide by using a glue mixing tank; b. reacting the mixture of the two at 63 deg.C for 30min, and stirring at 1 time/5 min; c. and (3) raising the temperature to 83 ℃ for the second time, reacting the mixture of the two at the temperature for 45min, and stirring for 1 time/5 min to finally obtain the novel phenolic resin for impregnating the adhesive film paper.
EXAMPLE five
a. Uniformly mixing phenolic resin with a molar ratio of 0.07 and calcium hydroxide by using a glue mixing tank; b. reacting the mixture of the two at 63 deg.C for 30min, and stirring at 1 time/5 min; c. and (3) raising the temperature to 83 ℃ for the second time, reacting the mixture of the two at the temperature for 45min, and stirring for 1 time/5 min to finally obtain the novel phenolic resin for impregnating the adhesive film paper.
Results of the performance tests of examples one to five as shown in fig. 1 to 3, an increase in the calcium hydroxide content contributes to a decrease in the phenol content of the resin, and in particular, the free phenol content rapidly decreases when the molar ratio of calcium hydroxide to phenolic resin is increased from 0.03 to 0.04, and the decrease tends to be gentle when the molar ratio of calcium hydroxide to phenolic resin exceeds 0.03; the content of formaldehyde in the resin can be reduced by increasing the content of calcium hydroxide, the content of formaldehyde shows a rapid descending trend when the molar ratio of the calcium hydroxide to the phenolic resin is increased from 0.03 to 0.05, and the descending trend of the content of formaldehyde is slowed down when the molar ratio of the calcium hydroxide to the phenolic resin exceeds 0.05; the increase of the calcium hydroxide content helps to increase the gelling speed, and the gelling time tends to decrease when the molar ratio of calcium hydroxide to phenolic resin is increased from 0.03 to 0.05, and tends to be gentle when the molar ratio of calcium hydroxide to phenolic resin exceeds 0.05.
According to the test result, the optimal technical scheme of the resin rapid curing method for impregnating the adhesive film paper is as follows: a. uniformly mixing phenolic resin with a molar ratio of 0.05 and calcium hydroxide by using a glue mixing tank; b. reacting the mixture of the two at 63 deg.C for 30min, and stirring at 1 time/5 min; c. and (3) raising the temperature to 83 ℃ for the second time, reacting the mixture of the two at the temperature for 45min, and stirring for 1 time/5 min to finally obtain the novel phenolic resin for impregnating the adhesive film paper.
In conclusion, the beneficial effects of the invention are as follows: divalent metal ion (calcium ion) compounds in calcium hydroxide are used as catalysts of the phenolic resin, and the divalent metal ions enable the phenolic resin to be rapidly cured at a lower viscosity, so that the impregnation time of the adhesive film paper is shortened, and the production efficiency is improved.
The above examples are intended only to illustrate the technical solutions of the present invention, and not to limit the same, and although the present invention is explained in detail with reference to the aforementioned facilities, those skilled in the art should understand that: it is to be understood that modifications may be made to the technical solutions described in the foregoing embodiments, or some technical features may be substituted with each other, without departing from the spirit or scope of the technical solutions of the embodiments of the present invention.
Claims (1)
1. The resin rapid curing method for impregnating the adhesive film paper is characterized by comprising the following steps of:
a. adding calcium hydroxide as a catalyst into phenolic resin for impregnating the adhesive film paper, and uniformly mixing by using an adhesive mixing tank; the molar ratio of the phenolic resin to the calcium hydroxide is 0.05-0.07; the molar ratio of formaldehyde to phenol in the phenolic resin is 1.6-1.8;
b. reacting the mixture of the two at 60-65 ℃ for 30min, and stirring for 1 time/5 min;
c. heating to 80-85 deg.c twice, and reacting the mixture at the temperature for 45min while stirring at 1/5 min to obtain the phenolic resin for soaking adhesive film paper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811193773.0A CN109456497B (en) | 2018-10-15 | 2018-10-15 | Resin rapid curing method for impregnating adhesive film paper |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811193773.0A CN109456497B (en) | 2018-10-15 | 2018-10-15 | Resin rapid curing method for impregnating adhesive film paper |
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| CN109456497A CN109456497A (en) | 2019-03-12 |
| CN109456497B true CN109456497B (en) | 2022-05-17 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB643782A (en) * | 1946-11-18 | 1950-09-27 | Plywoods Plastics Corp | Impregnated paper |
| AR229313A1 (en) * | 1982-04-27 | 1983-07-15 | Borden Uk Ltd | METHOD FOR THE PREPARATION OF A PAPER FILTER IMPREGNATED OF RESIN AND THE PAPER FILTER SO OBTAINED |
| CN1085916A (en) * | 1992-08-17 | 1994-04-27 | Dsm有限公司 | The method for preparing resol |
| CN101067016A (en) * | 2007-05-21 | 2007-11-07 | 张一帆 | Synthesis and usage of fast curing phenolic resin |
| CN104403615A (en) * | 2014-11-12 | 2015-03-11 | 中南林业科技大学 | Modified phenolic resin adhesive and preparation method thereof |
| CN109679044A (en) * | 2018-12-21 | 2019-04-26 | 上海昶法新材料有限公司 | A kind of preparation method of the modified phenolic resin adhesive suitable for bond paper |
-
2018
- 2018-10-15 CN CN201811193773.0A patent/CN109456497B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB643782A (en) * | 1946-11-18 | 1950-09-27 | Plywoods Plastics Corp | Impregnated paper |
| AR229313A1 (en) * | 1982-04-27 | 1983-07-15 | Borden Uk Ltd | METHOD FOR THE PREPARATION OF A PAPER FILTER IMPREGNATED OF RESIN AND THE PAPER FILTER SO OBTAINED |
| CN1085916A (en) * | 1992-08-17 | 1994-04-27 | Dsm有限公司 | The method for preparing resol |
| CN101067016A (en) * | 2007-05-21 | 2007-11-07 | 张一帆 | Synthesis and usage of fast curing phenolic resin |
| CN104403615A (en) * | 2014-11-12 | 2015-03-11 | 中南林业科技大学 | Modified phenolic resin adhesive and preparation method thereof |
| CN109679044A (en) * | 2018-12-21 | 2019-04-26 | 上海昶法新材料有限公司 | A kind of preparation method of the modified phenolic resin adhesive suitable for bond paper |
Non-Patent Citations (1)
| Title |
|---|
| 《酚醛树脂胶粘剂快速固化研究进展》;欧亚男,李建章,雷得定;《粘接》;20061031;38-40页 * |
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| CN109456497A (en) | 2019-03-12 |
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